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China Ductile Iron EN124 D400 Rectangular Manhole Covers - Reliable Suppliers & Factory Solutions
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Introduction
At present, the use of rectangular manhole covers has become increasingly popular in urban areas. In densely populated areas, the use of rectangular manhole covers has taken precedence over the circular ones, due to their relative ease of use and efficient handling. Their rectangular shape makes them more suitable for installation in narrow and elongated urban spaces, and for covering rectangular or square-shaped openings.
Our rectangular manhole covers come in various sizes and in ample quantities to meet your business needs. They are manufactured according to international standards and are suitable for use in different environments, including urban and rural areas. In this product introduction, we will delve deeper into what makes our rectangular manhole covers unique and explore their advantages and benefits.
Product Design
Our rectangular manhole covers are made from high-quality materials that are both durable and long-lasting. They are manufactured using casting technology, which guarantees the quality and durability of the product. The covers are designed and tested to sustain heavy loads and resist damage from environmental factors, such as weather and corrosion.
Our rectangular manhole covers come in a variety of sizes to meet your needs. They can range from 400x400mm up to 1200x1200mm, depending on the size of the opening that you need to cover. The covers are available in different thicknesses, including 40mm, 50mm, and 75mm to suit various uses.
Product Materials
We use high-quality materials to manufacture our rectangular manhole covers. The covers are made from either ductile iron or grey iron. Ductile iron is more shock-resistant and offers higher strength, while grey iron is more robust and offers good wear resistance.
The covers are also coated with various materials to extend their lifespan and prevent weathering and corrosion. We can apply various coatings to the covers, including bitumen, powder coating, epoxy, and in some cases, a combination of coatings.
Product Advantages
Our rectangular manhole covers have numerous advantages over other types of covers. One of the main advantages is in their design. The rectangular shape of the covers makes them more suitable for installation in narrow and elongated areas when compared to the circular manhole covers. This design makes them ideal for installation in densely populated urban areas where space is limited.
Another advantage of our rectangular manhole covers is their resistance to damage from heavy loads. The covers can withstand loads of up to 40 tonnes, which makes them suitable for use in high-traffic areas where heavy vehicles are frequent. The covers' strength and durability also make them ideal for use in industrial areas, where heavy machinery is commonplace.
Our rectangular manhole covers are coated with various materials to enhance their resistance to weather conditions and corrosion. This feature makes them ideal for use in areas with high levels of rainfall, snow, and saltwater. They also resist chemical agents, including oil and gas, making them suitable for installation in areas where these fluids are present.
Our rectangular manhole covers are easy to install and remove, making them ideal for maintenance purposes. The covers are lightweight and do not require heavy machinery to install or remove them. They are also easy to clean and maintain, ensuring they remain functional and attractive for the long term.
Conclusion
Our rectangular manhole covers are ideal for any business operating in urban or industrial areas. Their superior design, strength, and resistance to wear and tear make them ideal for installation in high-traffic areas. They are easy to install and maintain, making them a cost-effective solution for businesses looking to reduce their maintenance costs.
We guarantee the quality of our rectangular manhole covers, and we're happy to answer any questions you may have about our products. We're confident that you'll be satisfied with the quality and performance of our products, and we look forward to working with you!
Product Parameter
| Class | frame size (mm) | clear opening (mm) | Depth(mm) | unit weight (kg) | Specification |
|---|---|---|---|---|---|
| D400 | 400*400 | 300*300 | 75 | 20 | ductile iron; single seal; closed key hole |
| D400 | 500*500 | 400*400 | 100 | 29 | |
| D400 | 550*550 | 450*450 | 100 | 37 | |
| D400 | 600*600 | 500*500 | 100 | 42 | |
| D400 | 700*700 | 600*600 | 100 | 58 | |
| D400 | 800*800 | 700*700 | 100 | 77 | |
| D400 | 900*900 | 800*800 | 100 | 99 | |
| D400 | 1000*1000 | 900*900 | 100 | 149 | |
| D400 | 1100*1100 | 1000*1000 | 100 | 180 |
Frequently Asked Questions (FAQ)
What materials are used to manufacture your rectangular manhole covers?
Our rectangular manhole covers are manufactured from high-quality ductile iron or grey iron. Ductile iron offers higher strength and shock-resistance, while grey iron provides robust durability and excellent wear resistance.
What sizes and thicknesses are available for the rectangular manhole covers?
We offer a wide range of sizes starting from 400x400mm up to 1200x1200mm. The covers are available in various thicknesses, including 40mm, 50mm, and 75mm to match different installation and load requirements.
What is the load capacity of these manhole covers?
Our rectangular manhole covers are designed and tested to sustain heavy loads of up to 40 tonnes (D400 class), making them ideal for high-traffic environments, urban roads, and industrial areas.
How do the protective coatings extend the lifespan of the covers?
We apply various protective coatings such as bitumen, powder coating, epoxy, or a combination of these. These coatings protect the covers from harsh weather conditions, corrosion, saltwater, and chemical agents like oil and gas.
Why choose rectangular manhole covers over circular ones?
Rectangular manhole covers are highly suitable for narrow, elongated urban spaces and for covering square or rectangular openings. Their shape makes handling and installation more efficient in densely populated urban environments.
Are the rectangular manhole covers easy to install and maintain?
Yes, they are designed for easy installation and removal without requiring heavy machinery. They are also easy to clean and maintain, providing a highly cost-effective solution for long-term operations.